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Individual Calculations April 2009 |
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| Solano Lopaz, Royner Total change: -44.75 | |   |
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| Costa Rican National Championship Phase 1.1 | San Jose | CRC | 2009-01-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1967 | 2083 | 1.50 | 5 | -1.79 | 25 | -44.75 | |
|  Alfaro Guillen, Jose Raul | | | 1892 | CRC | 0.00 | 1 | -0.75 | 25 | -18.75 | | | Needham, Bryan | | | 2005 | CRC | 0.00 | 1 | -0.61 | 25 | -15.25 | |  Trejos, Shirley | | | 1986 | CRC | 1.00 | 1 | 0.37 | 25 | 9.25 | | | Duran Vega, Sergio | | | 1983 | CRC | 0.50 | 1 | -0.14 | 25 | -3.50 | | | Rodriguez, David | | | 1968 | CRC | 0.00 | 1 | -0.66 | 25 | -16.50 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | |
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